If the imam bows and the one praying behind him has not finished al-Fatihah, what is required of him?

Question:
Honorable Shaykh, may Allah grant you success. The questioner says: If the one praying behind the imam catches up with him while he is standing, before he bows, and the one behind reads part of al-Fatihah, then his imam bows and he bows before finishing it, is his prayer valid?

Answer:
It is obligatory for him to bow with the imam, even if he has not finished al-Fatihah. It is dropped from him if there is not enough time to read it, in which case it is dropped from him. Also, the imam’s recitation is sufficient for the one praying behind him. The imam’s recitation is sufficient for the one praying behind him according to many scholars. According to many scholars, the imam’s recitation suffices for the one praying behind him, and this is one of the benefits of congregational prayer. Yes.